<template>
  <el-dropdown trigger="click" @command="handleSetSize">
    <div>
      <i class="el-icon-rank"/>
    </div>
    <el-dropdown-menu slot="dropdown">
      <el-dropdown-item :disabled="size==='medium'" command="medium">Medium</el-dropdown-item>
      <el-dropdown-item :disabled="size==='small'" command="small">Small</el-dropdown-item>
      <el-dropdown-item :disabled="size==='mini'" command="mini">Mini</el-dropdown-item>
    </el-dropdown-menu>
  </el-dropdown>
</template>

<script>
  export default {
    computed: {
      size() {
        return this.$store.getters.size
      }
    },
    methods: {
      handleSetSize(size) {
        this.$ELEMENT.size = size;
        this.$store.dispatch('setSize', size);
        this.refreshView();
        this.$message({
          message: '布局尺寸切换成功',
          type: 'success'
        })
      },
      refreshView() {
        // In order to make the cached page re-rendered
        this.$store.dispatch('delAllCachedViews', this.$route);

        const {fullPath} = this.$route;

        this.$nextTick(() => {
          this.$router.replace({
            path: '/redirect' + fullPath
          })
        })
      }
    }

  }
</script>

<style scoped>
  .el-icon-rank {
    display: inline-block;
    cursor: pointer;
    fill: #5a5e66;;
    width: 20px;
    height: 20px;
    font-size: 20px;
  }
</style>

